Description
CRLF injection vulnerability in FlatNuke 2.5.5 and possibly earlier versions allows remote attackers to execute arbitrary PHP commands via an ASCII char 13 (carriage return) in the signature field, which is injected into a PHP script without a preceding comment character, which can then be executed by a direct request.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Flatnuke 2.5.5 - Remote Code Execution EDB-1140 · webapps · Aug 8, 2005 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 20050804 FlatNuke 2.5.5 (possibly prior versions) remote commands mailing-list
- http://www.rgod.altervista.org/flatnuke.html
- 16330 third-party-advisory
- flatNuke-firma-execute-commands(21709) vdb-entry
- 18554 vdb-entry
- 14485 vdb-entry